EP3751238A4 - Correction circuit and related signal processing circuit, and chip - Google Patents

Correction circuit and related signal processing circuit, and chip Download PDF

Info

Publication number
EP3751238A4
EP3751238A4 EP19914208.4A EP19914208A EP3751238A4 EP 3751238 A4 EP3751238 A4 EP 3751238A4 EP 19914208 A EP19914208 A EP 19914208A EP 3751238 A4 EP3751238 A4 EP 3751238A4
Authority
EP
European Patent Office
Prior art keywords
chip
signal processing
related signal
circuit
processing circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19914208.4A
Other languages
German (de)
French (fr)
Other versions
EP3751238A1 (en
Inventor
Si Herng NG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Goodix Technology Co Ltd
Original Assignee
Shenzhen Goodix Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Goodix Technology Co Ltd filed Critical Shenzhen Goodix Technology Co Ltd
Publication of EP3751238A1 publication Critical patent/EP3751238A1/en
Publication of EP3751238A4 publication Critical patent/EP3751238A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G01F1/668—Compensating or correcting for variations in velocity of sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)
EP19914208.4A 2019-03-15 2019-03-15 Correction circuit and related signal processing circuit, and chip Withdrawn EP3751238A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/078254 WO2020186383A1 (en) 2019-03-15 2019-03-15 Correction circuit and related signal processing circuit, and chip

Publications (2)

Publication Number Publication Date
EP3751238A1 EP3751238A1 (en) 2020-12-16
EP3751238A4 true EP3751238A4 (en) 2021-09-15

Family

ID=67372753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19914208.4A Withdrawn EP3751238A4 (en) 2019-03-15 2019-03-15 Correction circuit and related signal processing circuit, and chip

Country Status (5)

Country Link
US (1) US20200378813A1 (en)
EP (1) EP3751238A4 (en)
JP (1) JP7002667B2 (en)
CN (1) CN110073176B (en)
WO (1) WO2020186383A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4043838A4 (en) 2019-11-15 2022-11-02 Shenzhen Goodix Technology Co., Ltd. Flow velocity measurement circuit, related chip, and flow meter
CN110987099B (en) * 2019-11-15 2021-08-10 深圳市汇顶科技股份有限公司 Flow velocity detection circuit, related chip and flowmeter
CN117168583B (en) * 2023-10-31 2024-01-23 成都千嘉科技股份有限公司 Zero-crossing detection method and detection device for gas meter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0797105A2 (en) * 1996-03-21 1997-09-24 Siemens Aktiengesellschaft Method for measuring the time of flight of electric, electromagnetic or acoustic signals
US6305233B1 (en) * 1995-10-19 2001-10-23 Commonwealth Scientific And Industrial Research Organisation Digital speed determination in ultrasonic flow measurements
US20160334255A1 (en) * 2015-05-15 2016-11-17 Soneter, Inc. Method and system for fluid flow rate measurement
US20180335330A1 (en) * 2015-08-28 2018-11-22 Reliance Worldwide Corporation Flow meter configuration and calibration

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JP2979119B2 (en) * 1996-12-06 1999-11-15 日本電信電話株式会社 Automatic dynamic range control circuit
JPH1188125A (en) * 1997-09-03 1999-03-30 Sony Corp Digitally controlled oscillation circuit and pll circuit
TW538597B (en) * 1998-03-31 2003-06-21 Fujitsu General Co Ltd Phase lock loop circuit
DE19841154C2 (en) 1998-09-09 2002-11-07 Holger Loehmer Method and device for measuring the transit time of sound waves
KR100846773B1 (en) * 2002-04-11 2008-07-16 삼성전자주식회사 Apparatus for detecting and correcting wobble error and Phase Locked Loop circuit thereby
JP3669580B2 (en) 2002-05-24 2005-07-06 学校法人慶應義塾 Ultrasonic flow velocity distribution and flow meter
JP3919176B2 (en) * 2002-05-28 2007-05-23 シャープ株式会社 Correction circuit, delay circuit, and ring oscillator circuit
GB2397887A (en) * 2003-01-30 2004-08-04 Flotec Uk Ltd Ultrasonic gas composition analysis device
AT6511U3 (en) * 2003-07-16 2004-09-27 Avl List Gmbh ULTRASONIC GAS FLOW SENSOR AND DEVICE FOR MEASURING EXHAUST GAS FLOWS FROM COMBUSTION ENGINES AND A METHOD FOR DETERMINING THE FLOW OF GASES
CN100442347C (en) * 2003-07-28 2008-12-10 索尼株式会社 Delay time correction circuit, video data processing circuit, and flat display device
CN101023614A (en) * 2004-07-09 2007-08-22 电力波技术公司 System and method for digital timing error correction in a communications system utilizing adaptive predistortion
US8162837B2 (en) * 2005-06-13 2012-04-24 Spentech, Inc. Medical doppler ultrasound system for locating and tracking blood flow
CN101242507B (en) * 2007-02-08 2011-08-24 佛山市顺德区顺达电脑厂有限公司 Automatic correction device and its processing method
CN101308517B (en) * 2007-03-21 2010-12-08 台湾积体电路制造股份有限公司 Method for detecting and calibrating semiconductor device
US8442177B2 (en) * 2008-10-06 2013-05-14 Mitsubishi Electric Corporation Signal receiving apparatus and signal transmitting system
EP2356408B1 (en) 2008-11-21 2015-07-01 Flexim Flexible Industriemesstechnik Gmbh Method and device for calibrating measuring transducers of ultrasonic flow meters
DE102009046562A1 (en) 2009-11-10 2011-05-12 Robert Bosch Gmbh Method for measuring running time of ultrasound pulses in spatial area in automotive applications, involves detecting running time by deriving reception time reference from reception frequency changing characteristics
US8648612B2 (en) * 2010-07-09 2014-02-11 Rosemount Tank Radar Ab Calibration of a distance measuring device
CN102075486A (en) * 2011-01-20 2011-05-25 深圳市阿派斯实业有限公司 Synchronized method of orthogonal frequency division multiplexing (OFDM) system
US8837653B2 (en) * 2012-06-08 2014-09-16 Deere & Company High frequency signal receiver with self-calibrated group delay compensation
CN103454497B (en) * 2013-09-10 2016-09-21 南京理工大学 Based on the method for measuring phase difference improving windowed DFT
US9154263B1 (en) * 2014-03-31 2015-10-06 King Fahd University Of Petroleum And Minerals Evaluation of compressed sensing in UWB systems with NBI
US10330508B2 (en) * 2015-12-09 2019-06-25 Texas Instruments Incorporated Ultrasonic flowmeter using windowing of received signals
FR3050828B1 (en) * 2016-04-28 2019-06-21 Safran Aircraft Engines METHOD FOR DETERMINING A FLOW RATE OF FLUID FLOWING IN A DRIVING STRING AND ASSOCIATED DEVICE
JP2017215171A (en) 2016-05-30 2017-12-07 国立研究開発法人産業技術総合研究所 Flow velocity distribution measuring method and device thereof
CN109215667B (en) * 2017-06-29 2020-12-22 华为技术有限公司 Time delay estimation method and device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6305233B1 (en) * 1995-10-19 2001-10-23 Commonwealth Scientific And Industrial Research Organisation Digital speed determination in ultrasonic flow measurements
EP0797105A2 (en) * 1996-03-21 1997-09-24 Siemens Aktiengesellschaft Method for measuring the time of flight of electric, electromagnetic or acoustic signals
US20160334255A1 (en) * 2015-05-15 2016-11-17 Soneter, Inc. Method and system for fluid flow rate measurement
US20180335330A1 (en) * 2015-08-28 2018-11-22 Reliance Worldwide Corporation Flow meter configuration and calibration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020186383A1 *

Also Published As

Publication number Publication date
US20200378813A1 (en) 2020-12-03
JP2021517961A (en) 2021-07-29
JP7002667B2 (en) 2022-01-20
WO2020186383A1 (en) 2020-09-24
CN110073176A (en) 2019-07-30
EP3751238A1 (en) 2020-12-16
CN110073176B (en) 2020-11-27

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